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How many atoms are present in 4.5 moles?
Zygotes
The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of human development.
Fetuses
The term used to describe a developing human from roughly eight weeks after conception until birth.
Embryos
An embryo refers to the early stages of development in many organisms, following fertilization and during which vital organs and structures begin to form.
Braxton-Hicks Contractions
False labor pains that are a tightening of the uterine muscles for one to two minutes and are usually painless.
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